N°2651 rollback gitignore for lib tests dirs

Too dangerous ! We'll work properly on this but for 2.8

lib/symfony/console/Tests/Descriptor/MarkdownDescriptorTest.php

@@ -0,0 +1,45 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Tests\Descriptor;
+
+use Symfony\Component\Console\Descriptor\MarkdownDescriptor;
+use Symfony\Component\Console\Tests\Fixtures\DescriptorApplicationMbString;
+use Symfony\Component\Console\Tests\Fixtures\DescriptorCommandMbString;
+
+class MarkdownDescriptorTest extends AbstractDescriptorTest
+{
+    public function getDescribeCommandTestData()
+    {
+        return $this->getDescriptionTestData(array_merge(
+            ObjectsProvider::getCommands(),
+            ['command_mbstring' => new DescriptorCommandMbString()]
+        ));
+    }
+
+    public function getDescribeApplicationTestData()
+    {
+        return $this->getDescriptionTestData(array_merge(
+            ObjectsProvider::getApplications(),
+            ['application_mbstring' => new DescriptorApplicationMbString()]
+        ));
+    }
+
+    protected function getDescriptor()
+    {
+        return new MarkdownDescriptor();
+    }
+
+    protected function getFormat()
+    {
+        return 'md';
+    }
+}